Departments allow you to group various ‘Account’s and ‘Users to their relevant departments. Each account/user can be organised into 1 or more departments.
From the Site Management section select Departments
The current departments for that site will be listed.
To create a new department select Create Department in the top right.
Enter a name to identify the department.
Department members are selected from the Accounts and Users associated with this site. To add members to this department select the drop down list then choose Accounts or Users.
A second drop down box will appear which will be populated with the appropriate list for this site. In the example above the list will contain all the site Users.
Select a User from the list, then press the green + to add it to the department.
If a member has been added by mistake then they can be removed by pressing the red x next to that member in the list.
Repeat until all the accounts and users have been added to this department, then press 
.